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Inconel 617nickel Chromium Cobalt Molybdenum Alloy - China

price: contact company for price

Inconel 617(UNS NO7617) nickel-chromium-cobalt- molybdenum alloy

Features and applications overview: Inconel alloy 617 has excellent

corrosion resistance in hot corrosion fields such as vulcanizing

environment, especially in the environment of cycled oxidation and

carbonization at 1100°C. With so excellent corrosion resistance and

mechanical properties, this kind of alloy is particularly suitable for

high temperature areas. The alloy has good transient and long-term

mechanical properties at a high temperature up to 1100°C. This alloy is

applied to the industrial and aviation turbine components, air heater,

muffle tank, and radiation Museum, high temperature heat exchanger,

valves and springs, the high temperature gas cooled nuclear reactors,

high temperature components, such as nuclear reactors-helium/helium

medium heat exchanger, chemical equipment, petrochemical spiral pipe and

pipeline industry. Inconel617's similar grades:

W.Nr.2.4663 NiCr23Co12Mo(Germany)

Chemical composition, %:

Nickel........................................balance

Chromium..................................20.0-23.0

Iron.............................................2.0 max

Molybdenum...............................8.0-10.0

Cobalt..........................................10.0-13.0

Carbon........................................0.05-0.1

Manganese..................................0.7 max

Silicon..........................................0.7 max

Sulfur...........................................0.008 max

Phosphorus...................................0.012 max

Aluminium....................................0.6-1.5

Titanium........................................0.2-0.6

Physical properties:

Density, g/cm3 ..............................8.4

Melting Range, °C....................1330-1380

Thermal conductivity,

λ/(W/m•°C), at 100°C .................13.4

Specific heat, J/kg•°C...................420

Elastic modulus, GPa...................212

Electrical resistivity, μΩ•m..........1.22

Coefficient of linear expansion,

a/10-6°C-1, at 20-100°C........11.6

Mechanical properties: (the minimum value detected at room temperature)

Tensile strength, σb/MPa..........745

Yield strength, σp0.2/MPa.....325

Elongation, σ5 /%........................40

Brinell hardness, HBS.................≥250

The way of heat treatment is solution treatment

The metallurgical structure of Inconel617:

Inconel617 is of the face-centered cubic lattice structure with a good stability of the crystalline phase. Through solid-solution hardening, the alloy has excellent high-temperature strength. The alloy has no age hardening.

The process performance and requirements of Inconel617:

The hot working temperature of this alloy is 950 to 1200°C. The cooling method is water quenching or other rapid cooling ways. The materials shall put into when the the furnace's temperature up to the highest.

The average size of the grain size of the alloy is closely related to the forging deformation degree and the final forging temperature.

The oxides around the alloy's weld are more difficult to remove than those of stainless steel. For removing, both mechanical and chemical methods are favorable. Removing mechanically, the metal pollution and serious surface deformation shall be avoided. Prior to the pickling in a mixed acid of nitric acid and hydrofluoric acid, there is a need to remove the oxides with sandpaper or have a salt bath pretreatment.

The alloy is suitable for welding, including tungsten electrode arc welding(GTAW/TIG), manual metal arc welding(GMAW/MIG), pulse arc welding and shielding gas arc welding.

Inconel 617nickel Chromium Cobalt Molybdenum Alloy

Please see our contact information below


Company Contact:


  • Phone: 8602169925078

  • Address: 1355#,Chengbei road, Jiading District, Shanghai, Shanghai, China

  • Email: Email


Published date: October 18, 2012 -

  • Business Description: involved in international trade import export of goods, products, and services

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